0.24  250.
 0.18  500.
 0.04  750.
 0.01 1000.
-0.10 1250.
-0.12 1500.
-0.19 1750.
-0.20 2000.
-0.21 2250.
-0.25 2500.
-0.27 2750.
-0.25 3000.
-0.30 3250.
-0.33 3500.
-0.30 3750.
-0.32 4000.
-0.26 4100.
-0.27 4200.
-0.25 4300.
-0.21 4400.
-0.17 4500.
-0.14 4600.
-0.16 4700.
-0.15 4800.
-0.10 4900.
-0.12 4930.